THESE ARE NOT OFFICIALLY MADE OR NAMED FOR SONIC SYNERGY. AND I DID NOT MAKE THEM. I hope you enjoy listening to the music that could've been in this game. There may be more songs I'll put if you enjoy. Comment your thoughts on the music!

0:00 Menus
5:53 Tutorial A
7:52 Sunken Ruins Village
10:10 Water Slide
11:42 Speed Island
14:47 Lyric's Lair A
17:05 Ocean Waterfall Chamber
19:23 Submarine
21:41 Mystery Island Gauntlet
22:30 Cliff's Excavation Site Underwater
25:28 Coral Bay
28:45 Cloud City Road
32:10